A vane assembly for an engine is disclosed, the vane assembly having a vane including a blade having a spindle disposed at one <span class="c9 g0">endspan> thereof and a <span class="c5 g0">bushingspan> mounted on the spindle. The <span class="c5 g0">bushingspan>-includes <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions, each <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> having a generally <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> having a <span class="c12 g0">firstspan> <span class="c11 g0">fingerspan> disposed at a <span class="c12 g0">firstspan> <span class="c9 g0">endspan> of a <span class="c12 g0">firstspan> side of the <span class="c21 g0">bodyspan>, a <span class="c2 g0">secondspan> <span class="c11 g0">fingerspan> disposed at a <span class="c2 g0">secondspan> <span class="c9 g0">endspan> of the <span class="c12 g0">firstspan> side of the <span class="c21 g0">bodyspan> and a <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> disposed on a <span class="c2 g0">secondspan> side of the <span class="c21 g0">bodyspan>, between the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan>-ends of the <span class="c21 g0">bodyspan>, the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers having a <span class="c0 g0">distancespan> between them which is not less than a <span class="c14 g0">widthspan> of the <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan>. The <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions are snap fit onto the spindle of the vane such that the <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> of the <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is located between the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers of the <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>, and the <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> of the <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is located between the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers of the <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>. Each of the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions further include a semi-annular <span class="c13 g0">flangespan> disposed at the <span class="c12 g0">firstspan> <span class="c9 g0">endspan> of the <span class="c21 g0">bodyspan> <span class="c7 g0">portionspan>, the semi-annular <span class="c13 g0">flangespan> lying in a <span class="c17 g0">planespan> which is substantially perpendicular to a <span class="c15 g0">longitudinalspan> <span class="c16 g0">axisspan> of the <span class="c21 g0">bodyspan>.
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9. A <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> comprising:
a generally <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> having a <span class="c12 g0">firstspan> <span class="c11 g0">fingerspan> disposed at a <span class="c12 g0">firstspan> <span class="c9 g0">endspan> of a <span class="c12 g0">firstspan> side of said <span class="c21 g0">bodyspan>, a <span class="c2 g0">secondspan> <span class="c11 g0">fingerspan> disposed at a <span class="c2 g0">secondspan> <span class="c9 g0">endspan> of said <span class="c12 g0">firstspan> side of said <span class="c21 g0">bodyspan> and a <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> disposed on a <span class="c2 g0">secondspan> side of said <span class="c21 g0">bodyspan>, between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> ends of said <span class="c21 g0">bodyspan>, said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers having a <span class="c0 g0">distancespan> between them which is substantially a <span class="c14 g0">widthspan> of said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan>; a <span class="c13 g0">flangespan> disposed at an <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan>, said <span class="c13 g0">flangespan> lying in a <span class="c17 g0">planespan> which is substantially perpendicular to a <span class="c15 g0">longitudinalspan> <span class="c16 g0">axisspan> of said <span class="c21 g0">bodyspan>.
15. A <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>, said <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> comprising:
a substantially <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> having an <span class="c3 g0">upperspan> <span class="c9 g0">endspan>, a <span class="c8 g0">lowerspan> <span class="c9 g0">endspan>, a <span class="c12 g0">firstspan> side and a <span class="c2 g0">secondspan> side; the substantially <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> spans approximately 250°C to approximately 280°C; the <span class="c12 g0">firstspan> side of the <span class="c21 g0">bodyspan> having an <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan> disposed <span class="c10 g0">intermediatespan> said <span class="c3 g0">upperspan> and <span class="c8 g0">lowerspan> ends of the <span class="c21 g0">bodyspan>, said <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan> having a <span class="c14 g0">widthspan>; and the <span class="c2 g0">secondspan> side of the <span class="c21 g0">bodyspan> having an <span class="c3 g0">upperspan> <span class="c11 g0">fingerspan> disposed at said <span class="c3 g0">upperspan> <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan> and a <span class="c8 g0">lowerspan> <span class="c11 g0">fingerspan> disposed at said <span class="c8 g0">lowerspan> <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan>, said <span class="c3 g0">upperspan> and <span class="c8 g0">lowerspan> fingers having a <span class="c0 g0">distancespan> <span class="c1 g0">therebetweenspan> which is no less than, the <span class="c14 g0">widthspan> of said <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan>.
1. A <span class="c5 g0">bushingspan> comprising:
a <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions, each <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> having a generally <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> with a <span class="c12 g0">firstspan> <span class="c11 g0">fingerspan> disposed at a <span class="c12 g0">firstspan> <span class="c9 g0">endspan> of a <span class="c12 g0">firstspan> side of said <span class="c21 g0">bodyspan>, a <span class="c2 g0">secondspan> <span class="c11 g0">fingerspan> disposed at a <span class="c2 g0">secondspan> <span class="c9 g0">endspan> of said <span class="c12 g0">firstspan> side of said <span class="c21 g0">bodyspan>, and a <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> disposed on a <span class="c2 g0">secondspan> side of said <span class="c21 g0">bodyspan> between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> ends of said <span class="c21 g0">bodyspan>, said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers having a <span class="c0 g0">distancespan> between them which is substantially a <span class="c14 g0">widthspan> of said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan>; said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions are constructed to be snap fit together such that said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> of said <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is located between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers of said <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>, and said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> of said <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is located between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers of said <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>, wherein said generally <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> of each of said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions have a span of approximately 250°C to approximately 280°C.
7. A <span class="c5 g0">bushingspan> comprising:
<span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions, each <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> having a generally <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan> with a <span class="c12 g0">firstspan> <span class="c11 g0">fingerspan> disposed at a <span class="c12 g0">firstspan> <span class="c9 g0">endspan> of a <span class="c12 g0">firstspan> side of said <span class="c21 g0">bodyspan>, a <span class="c2 g0">secondspan> <span class="c11 g0">fingerspan> disposed at a <span class="c2 g0">secondspan> <span class="c9 g0">endspan> of said <span class="c12 g0">firstspan> side of said <span class="c21 g0">bodyspan>, and a <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> disposed on a <span class="c2 g0">secondspan> side of said <span class="c21 g0">bodyspan> between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> ends of said <span class="c21 g0">bodyspan>, said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers having a <span class="c0 g0">distancespan> between them which is substantially a <span class="c14 g0">widthspan> of said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan>; said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions are constructed to be snap fit together such that said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> of said <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is located between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers of said <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>, and said <span class="c4 g0">thirdspan> <span class="c11 g0">fingerspan> of said <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is located between said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> fingers of said <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>; each of said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions include a <span class="c13 g0">flangespan> disposed at an <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan>, said <span class="c13 g0">flangespan> lying in a <span class="c17 g0">planespan> which is substantially perpendicular to a <span class="c15 g0">longitudinalspan> <span class="c16 g0">axisspan> of said <span class="c21 g0">bodyspan>.
5. A <span class="c5 g0">bushingspan> comprising:
a <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions, each <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> having a substantially <span class="c20 g0">semicircularspan> <span class="c21 g0">bodyspan>, an <span class="c3 g0">upperspan> <span class="c9 g0">endspan>, a <span class="c8 g0">lowerspan> <span class="c9 g0">endspan>, a <span class="c12 g0">firstspan> side and a <span class="c2 g0">secondspan> side; the <span class="c12 g0">firstspan> side of the <span class="c21 g0">bodyspan> of each of the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions having an <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan> disposed <span class="c10 g0">intermediatespan> said <span class="c3 g0">upperspan> and <span class="c8 g0">lowerspan> ends of the <span class="c21 g0">bodyspan>, said <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan> having a <span class="c14 g0">widthspan>; the <span class="c2 g0">secondspan> side of the <span class="c21 g0">bodyspan> of each of the <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions having an <span class="c3 g0">upperspan> <span class="c11 g0">fingerspan> disposed at said <span class="c3 g0">upperspan> <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan> and a <span class="c8 g0">lowerspan> <span class="c11 g0">fingerspan> disposed at said <span class="c8 g0">lowerspan> <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan>, said <span class="c3 g0">upperspan> and <span class="c8 g0">lowerspan> fingers having a <span class="c0 g0">distancespan> <span class="c1 g0">therebetweenspan> which is no less than the <span class="c14 g0">widthspan> of said <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan>; said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions are constructed and arranged to be snap fit together such that said <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan> of said <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is positioned between said <span class="c3 g0">upperspan> and <span class="c8 g0">lowerspan> fingers of said <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> and said <span class="c10 g0">intermediatespan> <span class="c11 g0">fingerspan> of said <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> is positioned between said <span class="c3 g0">upperspan> and <span class="c8 g0">lowerspan> fingers of said <span class="c12 g0">firstspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan>; each of said <span class="c12 g0">firstspan> and <span class="c2 g0">secondspan> <span class="c6 g0">halfspan> portions include a <span class="c13 g0">flangespan> disposed at said <span class="c3 g0">upperspan> <span class="c9 g0">endspan> of said <span class="c21 g0">bodyspan>, said <span class="c13 g0">flangespan> lying in a <span class="c17 g0">planespan> which is substantially perpendicular to a <span class="c15 g0">longitudinalspan> <span class="c16 g0">axisspan> of said <span class="c21 g0">bodyspan>.
2. The <span class="c5 g0">bushingspan> of
3. The <span class="c5 g0">bushingspan> of
4. The <span class="c5 g0">bushingspan> of
6. The <span class="c5 g0">bushingspan> of
8. The <span class="c5 g0">bushingspan> of
10. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
11. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
12. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
13. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
14. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> of
16. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
17. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
18. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
19. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
20. The <span class="c5 g0">bushingspan> <span class="c6 g0">halfspan> <span class="c7 g0">portionspan> of
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This application is a continuation of Ser. No. 09/233,902 filed Jan. 20, 1999, U.S. Pat. No. 6,086,327.
1. Field of the Invention
The present invention relates generally to a bushing for a jet engine and more specifically to an improved,bushing which is less expensive to manufacture and which facilitates shipping and installation of the bushing.
2. Discussion of the Related Art
Jet engines generally include an axial air compressor which supplies compressed air into a combustor. The front section of a jet engine includes the axial air compressor. The axial air compressor generally includes several consecutive stages, each having a number of stator (stationary) vanes in a shroud and an equal number of rotor (rotating) vanes. Rotor vanes are designed and arranged such that, as the rotor vanes pass by the stator vanes in a particular stage, they take in a volume of air, compress the air and pass this compressed air into the next stage for further compression of the air. Some jet engines, such as the CFM56-2 turbofan engine manufactured by General Electric for example, have thirteen stages of compression. Stages 1 through 5 of this engine have stator vanes in which the pitch of the vanes is variable. The pitch of the variable stator vanes can be adjusted to vary the volume of air intake and thereby control the volume and pressure of the air that is subsequently injected into the combustor to be combined with fuel and ignited. The thrust of the engines can thereby be varied and the amount of air can be metered accurately for maximum fuel consumption. This is desirable because it provides the pilot with greater control over the amount of thrust produced within the engine at given engine speeds. For example, when the pilot is bringing the jet in for a landing, he or she can keep the engine running at very high RPMs and vary the pitch of the vanes to generate less thrust within the engine. If there is a problem and the pilot has to quickly generate thrust to pull up, he or she simply rotates the vanes of the stator to a pitch which increases the amount of air directed into the stator, thus increasing the thrust produced by the engine. The adjustable vanes allow the pilot to quickly produce thrust without having to adjust the RPMs at which the rotor is rotating.
As shown in
In order to facilitate the rotation of the vane 10, a bushing is mounted on spindle 16 before it is mounted between portions 20a and 20b of inner shroud 14. A prior art bushing 24 is shown in
Due to the properties of the material used in the manufacture of bushing 24, the requirement that each bushing be separately machined and the requirement for the elastic band 30, bushing 24 is very time consuming and expensive to manufacture. Shipping the bushings from the manufacturer to the end user is problematic because the three-piece bushings are prone to disassembling during shipping, thus requiring extra time for reassembling the bushing before it is installed on the vane 10. Furthermore, since each part 26a and 26b must be held in place on spindle 16 while the elastic band 30 is installed, the installation of bushing 24 on the vane 10 is very time consuming. Since, every time a jet engine is rebuilt, every vane bushing is replaced, the replacement of the bushings adds considerably to the expense and time required to rebuild an engine.
What is needed is a vane bushing for a jet engine which is simple and inexpensive to manufacture, and which is easy to ship and install on a jet engine vane.
The present invention is directed to a bushing for a jet engine vane which is injection moldable and therefore is simple and inexpensive to manufacture, and is formed into such a design which enables the bushing to. be easily shipped and installed on a jet engine vane.
According to one embodiment of the invention, a vane assembly for an engine is disclosed, the vane assembly comprising a vane comprising a blade having a spindle disposed at one end thereof and a bushing mounted on the spindle. The bushing comprises first and second half portions, each half portion having a generally semicircular body having a first finger disposed at a first end of a first side of the body, a second finger disposed at a second end of the first side of the body and a third finger disposed on a second side of the body, between the first and second ends of the body. The first and second fingers have a distance between them which is not less than a width of the third finger.
The first and second half portions are snap fit onto the spindle of the vane such that the third finger of the second half portion is located between the first and second fingers of the first half portion, and the third finger of the first half portion, is located between the first and second fingers of the second half portion.
Each of the first and second half portions further comprise a semi-annular flange disposed at the first end of the body portion, the semi-annular flange lying in a plane which is substantially perpendicular to a longitudinal axis of the body.
According to another embodiment of the invention, a vane assembly for an engine is disclosed, the vane assembly comprising a vane comprising a blade having a spindle disposed at one end thereof and a cylindrical bushing having first and second portions hingedly attached to each other. The first portion has a first finger disposed at a first end of the bushing and a second finger disposed at a second end of the bushing, the second portion having a finger disposed at a point between the first and second ends of the bushing.
The bushing is secured on the spindle by placing one of the first and second portions on the spindle and closing the bushing around the spindle such that the finger of the second portion is located between the first and second fingers of the first portion.
According to yet another embodiment of the invention, a vane assembly for an engine is disclosed, the vane assembly including a blade having a spindle disposed at one end thereof and a bushing having a cylindrical body. The body has a slot which extends from an upper edge of the body to a lower edge of the body and a number of slits which extend from the upper edge of the body to a point between the upper and lower edges of the body, the slot and the number of slits being constructed and arranged to permit the bushing to be temporarily pried open.
The bushing is mounted on the spindle by prying the bushing open at the slot, placing the bushing around the spindle and releasing the bushing, thereby allowing the bushing to encircle the spindle.
According to yet another embodiment, a bushing is disclosed, the bushing including first and second half portions, each half portion having a substantially semicircular body, an upper end, a lower end, a first side and a second side. The first side of the body of each of the first and second half portions have an intermediate finger disposed intermediate the upper and lower ends of the body and the second side of the body of each of the first and second half portions has an upper finger disposed at the upper end of the body and a lower finger disposed at the lower end of the body. The upper and lower fingers having a distance therebetween which is no less than the width of the intermediate finger.
The first and second half portions are constructed and arranged to be snap fit onto a spindle such that the intermediate finger of the first half portion is positioned between the upper and lower fingers of the second half portion and the intermediate finger of the second half portion is positioned between the upper and lower fingers of the first half portion.
The invention will now be described in greater detail with reference to the accompanying drawings, in which:
Referring now to the drawings, and more particularly to
As shown in
In
As shown in
Since both parts 42 of this embodiment are identical, there is no need for preassembling the bushings before they are shipped, and therefore, the prior art problem of having to reassemble bushings that become disassembled during shipping has been eliminated. Furthermore, since each part 42 of bushing 40 can be separately attached to the spindle 16, the need for the elastic band to hold the prior art bushing in place on the spindle 16 has also been eliminated.
A second embodiment of the bushing of the present invention is shown at 80 in
Bushing 80 is formed such that the distance between hinge 84 and the ends of upper and lower fingers 88 and 90, as well as the distance between hinge 84 and the end of intermediate finger 94 is less than the diameter of spindle 16. This permits either of parts 82a and 82b to be mounted onto the spindle 16 by snap fitting the part onto the spindle.
Bushing 80 is installed on a spindle 16 by hingedly opening parts 82a and 82b as shown by arrows 110 in
A third embodiment of the bushing of the present invention is shown at 120 in
While there is shown and described herein certain specific structures embodying the invention, it will be manifest to those skilled in the art that various modifications and rearrangements of the parts may be made without departing from the spirit and scope of the underlying inventive concept. For example, the intermediate finger of the first and second embodiments may have upper and lower edges which are tapered, rather than parallel, as shown in the figures. In such a case, the space between the upper and lower fingers would be formed to positively accept the tapered intermediate finger when the bushing is installed on a spindle. Also, while the hinge 84 of the second embodiment is disclosed as being a living hinge, it will be understood that the parts 82a and 82b may be formed separately and hingedly attached using any type of hinge structure. Furthermore, while the bushings of the present invention are described for use in connection with jet engines, the bushings may be used for any application in which a bushing having the above-described properties is desirable. Accordingly, the inventive concept is not limited to the particular forms herein shown and described except insofar as indicated by the scope of the appended claims.
Mack, James P., Mack, Edward J.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 01 2000 | MACK PLASTICS CORPORATION BY: EDWRD J MACK II, PRESIDENT | General Electric Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011533 | 0413 | |
May 17 2000 | General Electric Company | (assignment on the face of the patent) |
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